Jusia, P.A., Rahim, A., Yani, H. and Jasmir, J. 2024. Improving Performance of KNN and C4.5 using Particle Swarm Optimization in Classification of Heart Diseases. Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi). 8, 3 (Jun. 2024), 333 - 339. DOI:https://doi.org/10.29207/resti.v8i3.5710.